The tree of life is a metaphor for what idea?

A: we need water and sunlight to survive

B: we have multiple species

C: we are old

D: we came from a common ancestor

Which of the following explains the inversion of the aquatic pyramid of biomass? a. high phytoplankton turnover rate b. slow aquatic predator metabolisms c. small number of aquatic consumers d. high energy content of phytoplankton

Which of the following organisms needs salt in it's environment to survive A) Squirrel B) Shark C) Frog D) Cactus

How many of the following factors would affect the permeability of the cell membrane? • Size of molecules. • Lipid solubility of molecules. • Presence of transport channels. • Presence of ATP inside the cell.

What function does recombination by crossing-over have in genetic variation?

Socialist economies include aspects of both command and free-enterprise systems, O True O False

Flat and low-lying land a erosion or depostion

What is the law of conservation of matter?

What are three parts of a cell theory

The fetus of a client in labor is found to be at + 1 station. where did the nurse locate the fetus's head?

What Taxon that consists of one or more orders